5.4-stable review patch. If anyone has any objections, please let me know.
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From: Martin Liška mliska@suse.cz
[ Upstream commit 3406ac5347dbf64ab9f7b137ed25a18493f5ea2d ]
'perf annotate' supports --symbol but it's impossible to filter a C++ symbol. With --no-demangle one can filter easily by mangled function name.
Signed-off-by: Martin Liška mliska@suse.cz Link: http://lore.kernel.org/lkml/c3c7e959-9f7f-18e2-e795-f604275cbac3@suse.cz Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Stable-dep-of: 374af9f1f06b ("perf annotate: Get rid of duplicate --group option item") Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/Documentation/perf-annotate.txt | 7 +++++++ tools/perf/builtin-annotate.c | 4 ++++ 2 files changed, 11 insertions(+)
diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt index e8c972f89357d..066ecfffbf4ed 100644 --- a/tools/perf/Documentation/perf-annotate.txt +++ b/tools/perf/Documentation/perf-annotate.txt @@ -118,6 +118,13 @@ OPTIONS --group:: Show event group information together
+--demangle:: + Demangle symbol names to human readable form. It's enabled by default, + disable with --no-demangle. + +--demangle-kernel:: + Demangle kernel symbol names to human readable form (for C++ kernels). + --percent-type:: Set annotation percent type from following choices: global-period, local-period, global-hits, local-hits diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 8db8fc9bddef3..a6fea0be3a5d6 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -537,6 +537,10 @@ int cmd_annotate(int argc, const char **argv) "Specify disassembler style (e.g. -M intel for intel syntax)"), OPT_STRING(0, "objdump", &annotate.opts.objdump_path, "path", "objdump binary to use for disassembly and annotations"), + OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, + "Enable symbol demangling"), + OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, + "Enable kernel symbol demangling"), OPT_BOOLEAN(0, "group", &symbol_conf.event_group, "Show event group information together"), OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,